NASA

After John Glenn's death, take a look back at his life in photos, from orbiting Earth to receiving the Presidential Medal of Freedom.

If there are aliens or fossils of previous extraterrestrials on Mars, scientists are going to have to know where to look. That’s where this Earth desert and its bacteria tenants come in.

On April 24, she will break the national record, currently held by Jeff Williams, for spending the highest number of cumulative days spent in space.

As of now, NASA has approved funding for the International Space Station till 2024, and Russia’s Roscosmos has agreed to support the mission up to that time.

A black hole would tear you to pieces and a supernova would vaporize you. Here’s how to die in space in style.

NASA will preview the final months of the Cassini spacecraft and its Saturn mission in a news conference.

NASA's Cassini spacecraft has spent two decades traveling to and studying Saturn, soon it will burn up in the planet's atmosphere.

NASA's New Horizons spacecraft just hit a big milestone on its trip to deep space.

A fleet of robots that could one day travel to other planets and moons looking for aliens are packed with tools like buzzsaws and catapults.

NASA has just turned off an especially helpful and loyal satellite that had finally reached the end of its life. Rest in peace, EO-1.

A sun-like star in the Large Magellanic Cloud, about 160,000 light-years away, showed signs of association with a Type Ia supernova.

NASA reveals plan to build a Deep Space Gateway near the lunar surface to serve as a pit stop for astronauts going to Mars.

Plans for the next International Space Station are in the works, and it looks like it's going to orbit the moon.

NASA Expedition 50 members, Shane Kimbrough and Peggy Whitson, are doing a spacewalk Thursday morning on the International Space Station.

The spacecraft began studying Mars from an orbital perspective in 2006, and images taken from its Context Camera now cover over 99 percent of the red planet.

Based on what compounds are on Uranus scientists have gathered that the planet probably smells bad.

NASA's Image and Video Library is full of thousands of stunning images of space.

A large disk galaxy and a small “dwarf” galaxy merged in a system called Was 49, and the smaller partner has been found with a much larger-than-expected supermassive black hole.

Lunar swirls are streaks of color on the Moon and are a feature that is unique to Earth’s only natural satellite.

In the winds rushing away from a supermassive black hole are all the right ingredients for new stars to be born.

Thanks to this spacewalk, you’ll soon be able to pile into a taxi and take it straight to the International Space Station.